<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script type="text/javascript">
	function doClick()
	{
		var a = 1;
		alert(a);
	}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<button value="huang" onclick="alert('1')">请点击这里</button>
	
<Iframe   Width=100   height=100  style="background-color: rgb(0, 0, 0);"> </Iframe>
</body>
</html>